diff --git a/README.md b/README.md
index 75068fe56a..2776cb3eb0 100644
--- a/README.md
+++ b/README.md
@@ -113,7 +113,8 @@ which means you can modify it, redistribute it or use it however you like.
 
 ## Video Format Options:
     -f, --format FORMAT        video format code, specifiy the order of
-                               preference using slashes: "-f 22/17/18"
+                               preference using slashes: "-f 22/17/18". "-f mp4"
+                               and "-f flv" are also supported
     --all-formats              download all available video formats
     --prefer-free-formats      prefer free video formats unless a specific one
                                is requested
diff --git a/youtube_dl/version.py b/youtube_dl/version.py
index b6284c6d62..5d7467699f 100644
--- a/youtube_dl/version.py
+++ b/youtube_dl/version.py
@@ -1,2 +1,2 @@
 
-__version__ = '2013.08.30'
+__version__ = '2013.09.04'